baber/WOPTO huggingface dataset:
Patent CA-2063605-C (CA)
Title: Apparatus and a method for separating particulate material from high-temperature gases
Inventor: ISAKSSON JUHANI
IPC: B01D46/62
Filed: 1990-07-06
Granted: 1993-10-26
Abstract: In accordance with the present invention, there is provided a filter housing (2) comprising a plurality of open-ended parallel hollow gas-permeable filter elements (11) for separating particulate material from a high-temperature gas. The filter housing comprises at least a pair of cross sectional support plates (6, 7) dividing the filter housing into a first end section (8) having an inlet (13) for dirty gas, a end second section (9) in connection with a discharge port (16) for separated particulate material, and an intermediate filtration chamber (10, 24, 24, 29, 30, 31, 41, 42) section therebetween. The filter elements are arranged in the intermediate filtration chamber extending from the first support plate to the second support plate. A clean gas outlet conduit (17, 26, 27, 32, 33, 34, 37, 38, 43, 44) is in communication with the clean gas space in the intermediate filtration chamber. It is an important feature of the present invention that means (22) are provided inside said filter housing for supplying a reverse flow pressure pulse of high energy gas into said filtration chamber, for cleaning the porous filter medium. The reverse-flow pressure pulse can be supplied through a relatively small pipe connected to a compressor.
Patent CA-2063978-C (CA)
Title: Gasification-combined power plant
Inventor: TODA HIROMICHI
IPC: F23R3/30
Filed: 1992-03-25
Granted: 1997-03-11
Abstract: The gasification-combined power plant of the present invention has a structure wherein a fuel gas is generated by partially oxidizing a carbon-containing fuel(2)with an oxygen-containing gas(3)in the gasification apparatus(1), the sensible heat of the fuel gas is recovered by the heat ex-changer(4), char and dust are removed from the fuel gas by the dust collector(5), trace gas components, such as H2S and NH3, are simultaneously removed from the waste gas by the gas separation apparatus(6)based on dry physical adsorption of these components (for example, by a pressure swing adsorption method), the thus separated and removed gas containing high concentrations of trace gas components, such as H2S and NH3, is denitrated and desulfurized by the gas disposal apparatus (7)and then is discharged from the chimney(13)into the atmo-sphere.  With the simultaneous removal of the trace gas components at a high temperature from the fuel gas produced by the gasification apparatus, this plant simultaneously achieves both a high heat efficiency for the gasification-combined power plant as a whole and the reduction of sulfur oxides and nitrogen oxides in the combustion waste gas from the gas turbine.
Patent CA-2066611-C (CA)
Title: Error detection for fiber distributed interfaced optic link
Inventor: CHANDRAN SRIKUMAR R
IPC: H04B10/556
Filed: 1990-09-12
Granted: 1994-04-12
Abstract: Error detection of digital data transmitted on an optic link (18a-18b) is accomplished by creating, before transmission, a check code comprising check bits that correspond to spaced one of the data bits forming the plurality of bits. The check code is then transmitted with the plurality of bits (Fig. 1) to a receiver (32), where the plurality of bits are used to create an error code in the same manner as the check code, the error and check codes compare, and an indication of error (64) generated when a miscompare is detected.
Patent CA-2072314-C (CA)
Inventor: GREEN MARK R
IPC: H01L33/38
Filed: 1992-06-25
Granted: 2007-07-31
Abstract: Methods are provided for detecting carcinoma metastases in selected body tissue or fluid. These methods offer enhanced sensitivity compared to prior standard diagnostic methods. In one embodiment of the invention, target carcinoma associated nucleic acid sequences are identified for detecting minimal residual disease in lung carcinomas. The methods utilize nucleic acid amplification techniques, preferably, the polymerase chain reaction.
Patent CA-2079392-C (CA)
Title: Tripod lock device
Inventor: INDOU KENJI
IPC: F16M11/32
Filed: 1992-09-29
Granted: 1996-11-12
Abstract: A tripod lock device for locking a tripod having three identical legs each composed of a fixed leg and a movable leg slidably disposed between a pair of parallel spaced leg members of the fixed leg for adjusting the length of the leg in a telescopic manner.  The tripod lock device is composed of three identical leg lock units each associat-ed with one of the three legs of the tripod.   Each of the leg lock units includes a frame, an eccentric cam and an engagement portion.   The frame has a through-hole in which the leg members of the fixed leg and the movable leg are disposed, with one of the leg members secured to the frame.          The engagement portion comprises a rod disposed on the frame at a position adjacent to said one leg member.   The eccen-tric cam includes a presser portion and a hook.  When the eccentric cam is rotated in one direction,  the presser portion forces the one leg member toward the other leg member to firmly grip the movable leg between the two leg members of the fixed leg, and the hook of one of the leg lock units hooks on the rod of an adjacent one of the leg lock unit.  Thus,  the three legs of the tripod are locked together against spreading.
Patent CA-2081081-C (CA)
Inventor: LINDGREN ERIK
IPC: D21H21/16
Filed: 1992-10-21
Granted: 1997-07-08
Abstract: The present invention relates to a packaging material for reduced transfer  from  a  package  to  its  content of substances  causing   undesirable  taste  and/or  hazardous substances,  this  reduction  being  due  to  the packaging material containing a hydrophobic zeolite. More specifically, the invention concerns paperboard, in which case the substances causing  undesirable taste  mainly are naturally occurring extractive substances, oxidation products thereof and, to  a lesser extent, the paper chemicals present. Further, the presence of a hydrophobic  zeolite in  the paperboard enhances  the water-repellent (hydrophobic) capacity. Also, the present invention  concerns a  method for production of a packaging material of paper, board or paperboard by forming and dewatering  a suspension  of lignocellulose-containing fibres, where the dewatering takes place in the presence of a hydrophobic  zeolite.  Moreover,  the present invention relates  to the  use of a hydrophobic zeolite for production of a packaging material, as  well as  the use of the thus-produced  packaging material in packages for solid or liquid foodstuff, tobacco or medicines.
Patent CA-2086782-C (CA)
Title: Flush valve cover
Inventor: WHITESIDE JOHN F
IPC: E03D3/02
Filed: 1993-01-06
Granted: 1998-07-14
Abstract: A flush valve includes a body having a water inlet and a water outlet.  There is an inner cover mounted on the body and with portions of the flush valve defines a chamber which is in communication with the flush valve inlet.  A sensor for detecting the presence of an object adjacent the flush valve is mounted on the inner cover, as is an electrical circuit for causing operation of the flush valve.  There is an outer cover which encloses the inner cover, sensor, and electrical circuit.          The outer cover is formed of a plastic which will transmit radiation from the sensor whereby the sensor can detect the presence of an object adjacent the flush valve.  The inner and outer cover have interfitting lugs which restrict relative rotation therebetween and provide a means for attaching the covers to the flush valve body through the use of a ring which applies a load only to the inner cover.
Patent CA-2087424-C (CA)
Title: Rock bolt system and method of bolting
Inventor: WINDSOR CHRISTOPHER REGINALD
IPC: E21D21/00
Filed: 1991-07-16
Granted: 2000-03-28
Abstract: Novel rock bolting systems and methods of rock bolting are provided herein.  One embodiment of such rock bolting system includes an inner part which is disposed within an outer part. The inner part includes a fluid-expansible elongated tube having an internal, closed-ended, fluid-receiving chamber having a fluid inlet through which said expansible tube can be pressurized permanently to expand radially. The outer part comprises an elongated tube having a longitudinal slot, the longitudinal slot extending at least part way along the length of the tube of the outer part.
Patent CA-2089984-C (CA)
Title: Eye make-up containing a wax microdispersion
Inventor: PIOT BERTRAND
IPC: A61K8/00
Filed: 1993-02-19
Granted: 2006-04-11
Abstract: Eye make-up cosmetic composition containing an aqueous dispersion of particles of wax, at least one water-soluble film-forming polymer and pigments, the said dispersion being a microdispersion of colloidal particles of wax. Viscous compositions (mascaras) can thus in particular be produced which make it possible to obtain on the eyelashes a deposit which, while being smooth and evenly formed, confers a thickening effect.
Patent CA-2094697-C (CA)
Title: Polyolefin composition containing ultrafine sorbitol and xylitol acetals
Inventor: MANNION MICHAEL JOHN
IPC: C08K5/00
Filed: 1993-04-22
Granted: 2002-08-27
Abstract: A process for incorporating a clarifying agent into a semi-crystalline polyolefin resin is provided whereby a clarifying agent selected from compounds having the formula:      wherein p is 0 or 1, m and n are independently 0-3, and R is, at each occurrence, independently selected from C1-8 alkyl, C1-4 alkoxy, hydroxy, halogen, C1-6 alkylthio, C1-6 alkylsulfoxy and a 4 or 5 membered alkyl group forming a carbocyclic ring with adjacent carbon atoms of the unsaturated parent ring, and wherein the clarifying agent is in the form of a powder characterized by a d97 of 30 microns or less, and a mean particle size of 15 microns or less, is blended with the polyolefin resin, at a temperature above 170°C until the clarifying agent is dissolved in the molten resin.
Patent CA-2098807-C (CA)
Title: Waste treatment process employing oxidation
Inventor: ROZICH ALAN F
IPC: C02F3/28
Filed: 1993-06-18
Granted: 1999-08-31
Abstract: Processes for the treatment of organic waste are disclosed, including feeding the organic waste to an ATAD reactor and subjecting the organic waste to biological digestion in the ATAD reactor in order to produce a biomass and clear decant therein, characterized by oxidizing at least a portion of the biomass so as to produce an oxidized effluent therein, and returning the oxidized effluent to the ATAD reactor.      Variations on these processes which are disclosed are comprising the removal of nutrients from the clear decant, treating of the organic waste with a mixer prior to feeding it to the ATAD reactor, feeding the waste by a grinder upstream of the mixer, feeding the mixed material initially to an AAD vessel from which methane gas is removed, and then to the ATAD reactor, with or without nutrient removal, the use of solid separation for the effluent from the ATAD reactor, and other such variants.
Patent CA-2109582-C (CA)
Inventor: BLOMQVIST GUNNAR
IPC: F16L47/02
Filed: 1992-06-12
Granted: 1998-09-15
Abstract: The present invention relates to a method for joining spirally wound thermoplastic pipes (1, 2) of a hole profile together, characterized by the following steps: working the end surfaces (3, 4) of the spirally wound thermoplastic pipes (1, 2) into a smooth step-formed surface; setting two thermoplastic pipes (1, 2) end against end such that a smooth step-formed gap is formed between the end surfaces (3,4); applying a stainless steel band (5) over the gap and heating the steel band (5) to ca. 100 °C, applying an extruder (6) with a rotating extruder head (6) and a cooled slide and smoothing organ (8) cooperating therewith inside the pipes (1, 2) to be joined together; heating the end surfaces (3, 4); extruding a weld seam of a melted thermoplastic (9) into the gap between the two end surfaces (3, 4); as well as stopping the heating of the steel band (5) and removal of the steel band (5) from the joining place after cooling.
Patent CA-2109790-C (CA)
Inventor: BI QI
IPC: H04W88/02
Filed: 1993-11-23
Granted: 1998-02-03
Abstract: Désétaleur de signal pour système AMRC. L'appareil traite des échantillons du signal reçu au moyen de répliques filtrées des séquences de coefficients de codage associées aux utilisateurs du système. Les symboles transmis par chaque utilisateur du système sont récupérés au moyen d'une réplique filtrée de la séquence de coefficients de codage associée à cet utilisateur. Dans la version présentée, le canal de communication entre l'émetteur de chaque utilisateur et la station de base est à bande limitée. Par conséquent, à l'intérieur de l'émetteur de chaque utilisateur, un appareil de filtrage ayant une caractéristique de fréquence est utilisé pour limiter le spectre de fréquences de chaque signal codé à une bande passante prédéterminée égale ou inférieure à celle du canal de communication. Suivant la présente invention, chaque réplique filtrée reproduit cette caractéristique de fréquence. Le canal de communication a également une caractéristique de fréquence, que peut reproduire chaque réplique filtrée.
Patent CA-2116767-C (CA)
Title: Packaging bag, preferably for perilous samples, and method for producing the packaging bag
Inventor: SODERHOLM JAN
IPC: B31B41/00
Filed: 1992-09-02
Granted: 2005-06-07
Abstract: The invention concerns a package and a method for producing the package and aims at obviating the risk of infection from a possibly contaminated or leaking sample, as well as enabling inexpensive and simple production. This is essentially achieved by a package having two compartments (P, M) each sealable by means of a flap (H1, H2), the flaps (H1, H2) as well as the openings of the two compartments being located on opposite sides of the package. The use of a translucent material and of an absorber changing colour when contacted with the sample enables visual detection of leakage inside the sealed package.
Patent CA-2120570-C (CA)
Title: Regenerative thermal oxidizer
Inventor: BAYER CRAIG E
IPC: F23G7/06
Filed: 1994-04-05
Granted: 1998-06-30
Abstract: A regenerative thermal oxidizer for oxidizing a contaminant in an air or other gas stream includes a heat transfer material which heats the incoming air and collects heat from the exiting air.  The direction of flow of the air through the oxidizer is periodically reverse for the regenerative heat exchange.   When  flow is reversed,  a quantity of untreated air  in the oxidizer which would otherwise be discharged to the atmosphere is collected in a purge chamber which surrounds the lower portion of the discharge stack.  The untreated air enters the bottom of the chamber and the air already in the chamber is forced out from vent holes in the top of the chamber into the stack.  The untreated air in the chamber is fed back to the oxidizer  through  the  inlet  of  the  blower  feeding  the oxidizer while clean air is drawn into the chamber from the stack through the vent holes.
Patent CA-2122670-C (CA)
Inventor: ROBY MARK S
IPC: A61L17/12
Filed: 1994-05-02
Granted: 2001-04-17
Abstract: Block copolymers wherein one of the blocks is made from hard phase forming monomers and another of the blocks is made from soft phase forming monomers copolymerized with randomly intermingled units of other soft phase forming monomers. The copolymers are useful in forming surgical articles, including both monofilament and multifilament sutures.
Patent CA-2139459-C (CA)
Title: Drum supporting hub and drum assembly
Inventor: STENZEL JAMES G
IPC: G03G15/00
Filed: 1995-01-03
Granted: 2000-02-15
Abstract: A drum supporting hub including a disk shaped member having a circular periphery, a hole extending axially through the center of the disk shaped member, and at least one long thin electrically conductive resilient member secured to the disk shaped member, the resilient member having a central section adjacent the hole and having opposite ends, each of the ends terminating into at least one pointed tip adjacent the circular periphery of the disk shaped member, and the resilient member having a major plane substantially parallel to the axis of the disk shaped member.      This hub may be inserted in at least one end of a cylindrical electrostatographic imaging member to produce an imaging member assembly.
Patent CA-2140649-C (CA)
Title: Hybrid oligonucleotide phosphorothioates
Inventor: METELEV VALERI
IPC: A61K31/70
Filed: 1993-07-22
Granted: 2004-12-21
Abstract: The invention provides hybrid oligonucleotides having phosphorothioate ar phosphorodithioate internucleotide linkages, and both deoxyribonucleosides and ribonucleosides or 2'-substituted ribonucleosides. Such hybrid oligonucleotides have superior properties of duplex formation with RNA, nuclease resistance, and RNase H  activation.
Patent CA-2142636-C (CA)
Title: Implantable articles with as-cast macrotextured surface regions and method of manufacturing the same
Inventor: CALDARISE SALVATORE
IPC: A61F2/30
Filed: 1995-02-16
Granted: 2005-09-20
Abstract: An implantable article having on at least a portion of its exterior surface an integral, as-cast macrotextured surface with macropores having undercut edge profiles. A complex macrotextured surface is provided by forming a casting mold so that the mold has complementary macrotextured surface features formed by three-dimensional printing techniques, and casting a molten metal within or in contact with the casting mold to form the implantable article. In a hybrid process, one or more printed surface mold plates are attached by hand, or in a wax molding process, to a simpler wax preform, and an investment is made in which the plates are incorporated into the investment mold. A casting is then made, with each preform yielding one cast article, and the incorporated plate forming the desired surface macrotexture on a region of the cast article. Pore size, porosity and pore shape may be varied across the surface, or varied with depth, to independently enhance different mechanical and physiological factors at the bone-prosthesis interface.
Patent CA-2143385-C (CA)
Title: Suspension device for a snowmobile
Inventor: KAWANO SHIZUO
IPC: B62D55/104
Filed: 1995-02-24
Granted: 1999-11-09
Abstract: A suspension device for providing a resilient support for a snowmobile body includes a frame for supporting the snowmobile body.  A slide rail is operatively connected to the frame for pressing a crawler belt against a snow surface.  A swing arm includes a first end pivotally supported on the frame and a second end pivotally mounted on the slide rail.  A shock absorber includes a first end pivotally supported on a shaft adjacent to the first end of the swing arm, and a second end of the shock absorber is connected to the frame through a progressive link pivotally supported on the swing arm.
Patent CA-2144084-C (CA)
Title: Substances photochromiques a resistance a la fatigue accrue
Inventor: LIGAS JOHN S
IPC: G02B1/00
Filed: 1993-08-27
Granted: 1999-01-12
Abstract: Des articles optiques photochromiques à résistance accrue à la fatique causée par la lumière sont offerts grâce à l'utilisation d'une combinaison d'un photostabilisant amine contrarié et d'un photostabilisant diaryloxalamide asymétrique ajoutés à un mélange de (1) matériel photochromique possédant une transmission lumineuse minimum variant entre 560 et 630 nanomètres et de (2) matériel photochromique dont la transmission lumineuse minimale se trouve entre 430 et 520 nanomètres.
Patent CA-2146830-C (CA)
Inventor: PATTERSON KELLY JAMES
IPC: E03B7/09
Filed: 1995-04-11
Granted: 2000-06-27
Abstract: Apparatus is provided  for thawing  frozen pipes or  for cleaning pipes, for use with a source of warm thawing water or cleaning  water, a source of compressed air, and a flexible tube suitable for being inserted into the end of a pipe through guide means to feed the water into the pipe while  the tube is being advanced into the pipe.  The apparatus comprises a valved water conduit having an inlet for connection to the source of water and an outlet for connection to the flexible tube, this conduit having a movable valve.  A compressed air powered drive means, usually a rotator, connectable to said source of compressed air, is arranged to move the valve in such manner as to continually interrupt the flow of water in the conduit and so to produce a pulsating flow of water in the tube for thawing ice in the frozen pipe or cleaning the pipe.  The rotator for the valve may be a compressed air driven ratchet drive.  Means may also be provided for injecting air into the pipe to clear out ice or dirt.
Patent CA-2147498-C (CA)
Inventor: GALLOWAY R KEITH
IPC: G01N1/10
Filed: 1994-09-08
Granted: 2003-12-30
Abstract: An assaying device is provided for collecting a sample, analyzing a portion of the sample and shipping of an unadul-tered remainder of the sample. In order to reduce manual handling and thereby to reduce contamination risk as well as the risk of misidentification of a sample the assaying device comprises: container means (12), having an opening (14), for collecting a sample, and a chamber (18), for storing said sample; cap means (28) for sealing the container means (12) opening (14); assay means (40), attached to said container means (12), for chem-ically analyzing said sample, said as-say means (40) being positioned on said container means (12) for enabling direct visual observation thereof; and means, spaced apart from said chamber and said chamber and said assay means (36), for introducing the sample portion into the assay means and preventing flooding of the assay means by the sample portion, said last mentioned means comprising a plenum (34) disposed between said chamber and said assay means and a wick (52) disposed between said plenum and said assay means.
Patent CA-2153255-C (CA)
Inventor: JONES LLOYD GARNER
IPC: E21B43/04
Filed: 1994-01-24
Granted: 2002-04-23
Abstract: A method of completing a well which includes the installation of a gravel pack completion adjacent a formation in the well. A fluid-loss agent is flowed into the well to form a barrier to flow into and out of the formation prior to the installation of the gravel pack. A screen is then lowered into the well and is positioned adjacent the formation. A gravel slurry which includes a removal agent is flowed into the well to deposit gravel. The removal agent contacts and dissolves or disintegrates the flow barrier to thereby open flow to the formation during the placement of the gravel.
Patent CA-2156176-C (CA)
Inventor: BARNES WAYNE M
IPC: C12N15/10
Filed: 1994-02-22
Granted: 2000-04-18
Abstract: A DNA polymerase having an amino acid sequence comprising substantially the same amino acid sequence as that of Thermus aquaticus or Thermus flavus DNA polymerase, excluding the N-terminal 280 amino acid residues of Thermus aquaticus DNA polymerase or the N-terminal 279 amino acid residues of Thermus flavus DNA polymerase, recombinant DNA sequences encoding said DNA polymerases, vectors comprising said DNA sequences, and host cells containing such vectors. A formulation of thermostable or other DNA polymerases comprising a majority component comprised of at least one thermostable or other DNA polymerase of the type described above, wherein the DNA polymerase lacks 3'-exonuclease activity, and a minority component comprised of at least one thermostable DNA polymerase exhibiting 3'-exonuclease activity, and an improved method for enzymatic extension of DNA strands, especially while, but not limited to, amplifying nucleic acid sequence by polymerase chain reaction wherein the above formulation is made and used to catalyse primer extension, are also provided.